Did you ever consider using NVIDIA? I thought the machine you were planning to sell originally had RTX 6000s.
Also, isn’t the real problem with the 7900 XTX is the lack of interconnect? I really appreciate the long list of stuff you are agitating AMD about. Infinity Fabric and blower fans would be great too. Another POV is none of that is ever going to happen, and everyone will have to wait for a Chinese GPU manufacturer to create real competition. I can’t recall a single time in my life a non-Chinese company - electronics or otherwise - delivered the “same” features for a lower price.
From a business side, tiny corp is selling boxes with both AMD and NVIDIA, we'll let the user choose how much they value money vs pain.